{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-352270","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2026-08-14T20:13:38+00:00","discovered_at":"2026-08-14T20:20:44.190484+00:00","generated_at":"2026-08-14T20:20:50.018926+00:00","sec_items":["1.01","2.03","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Martin Marietta issues $5.5B in senior notes to fund Lhoist North America acquisition","bullets":["Issued $750M 4.850% notes due 2029, $1.25B 5.200% due 2032, $1B 5.400% due 2034, $1.5B 5.625% due 2036, $1B 6.375% due 2056.","Net proceeds, with $1.5B term loan, to pay cash consideration for Lhoist North America acquisition.","Closing expected Q3 2026; special mandatory redemption at 101% if acquisition not consummated.","Notes are senior unsecured, not guaranteed by subsidiaries; structurally subordinated to subsidiary debt.","Interest semiannual; first payments Feb 15, 2027 (2029/2036/2056) and Jan 30, 2027 (2032/2034)."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-352270","json":"https://secwatch.observer/filing/0001193125-26-352270.json","markdown":"https://secwatch.observer/filing/0001193125-26-352270.md","text":"https://secwatch.observer/filing/0001193125-26-352270.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000119312526352270/0001193125-26-352270-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000119312526352270/d103352d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-08-14T20:20:50.018926+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}